Small distance led display is the purpose of doing high-definition, into the home appliance industry. Now the led display are used for municipal, commercial media. If you do into the home appliance industry, the market will develop into a monopoly technology.
With the continuous improvement of led display technology, small distance led display more and more perfect. After the industry's precipitation, p2.5 are called the following small distance led display. According to the data that the current small spacing is the smallest p1.5, there are models including p2, p1.9 and so on. We choose a small pitch should be considered from the following questions.
From the price side, the LED lamp beads as the pitch becomes smaller, we installed the LED lamp beads is more intensive, small distance led display requirements are very high, and cooling, circuit or power compared to other led display is more High, and now, the small distance led display technology is still in development, not very skilled, it caused a small distance led display price is not expensive, but with the small distance led display technology To more skilled, more and more high capacity, our prices will decline, just like the phone that year, just out of the time the price is very expensive, but when the phone is full of the market when it is so worthless.
From the maintenance side, although the led display life is very long, but because the lamp beads are more, and the indoor requirements of the thickness of the outdoor high, resulting in cooling effect is not very good, prone to failure. This is for the small distance led display is relatively difficult to maintain, but now has a perfect technology, front maintenance led display. In the small distance to buy and application should pay attention to:
Led display area of the bright area, is the luminous surface of each pixel and the proportion of the entire led display pixels. Led display is arranged by the discrete pixels, pixels and pixels between the Hengda different. Some distance near the visual effect is not very good to watch, and the brightness will be uneven grainy things, if the light source in a small pixel where a pixel brightness index will be very high, it will cause a strong The visual impact. Flat LED display is the industry recognized TCO'99 standard requirements, LED lights can not be less than 50% look, but now many of the market led display are not required. TV's low-pass filter cut-off characteristics also directly affect the filling factor of the different led display of the appropriate shooting distance. Fill the coefficient is much smaller than the filling factor, so the camera is far away. If the system low pass filter passband is 4MHz, high frequency attenuation characteristics of 12db / octave, then the filling factor of 25% of the shooting distance than the fill factor of 50% more attenuation 1.15db, shooting distance need to increase about 10%. Fill the coefficient is improved, is the application of a wider display screen, the color is more ideal, the perfect solution to the glare, and now the LED display to create conditions are getting better and better.